JP2716564B2 - Method and apparatus for cutting honeycomb structural member - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method and an apparatus for cutting a honeycomb structural member using an ultrasonic cutting knife.

[Conventional technology]

Generally, a honeycomb structural member is processed into a desired outer shape by cutting using a band saw or a knife, or punching and cutting using a press device.

In such a cutting process, since the honeycomb structural member is cut while being pressed against with a blade, material strength, dimensional accuracy, surface accuracy of the cut portion is impaired, noise generation, and, There is a problem in the working environment that dust is harmful to the human body.

On the other hand, in order to solve the above-mentioned disadvantages of the cutting process, abrasive water jet processing, in which a high-pressure fluid mixed with an abrasive is sprayed from a nozzle toward a workpiece to perform cutting, is used for cutting a honeycomb structural member. Processing techniques applied to the Japanese Patent Application Laid-open No. 64-87196,
64-87198).

[Problems to be solved by the invention]

However, in the processing of the honeycomb structural member by the abrasive water jet processing, it is necessary to pressurize the fluid to a high pressure, so that the processing equipment is inevitably large in scale. In addition, since it takes time to perform a setup operation such as positioning the workpiece firmly with a jig, a drawback has been pointed out in terms of processing efficiency.

Therefore, the present invention is to solve the problems of the prior art and to provide a cutting method and a cutting device for a honeycomb structural member that can improve the processing accuracy and processing efficiency in addition to simplifying the processing device. With the goal.

[Means for solving the problem]

In order to achieve the above object, the present invention provides a method in which a cutting edge of an ultrasonic cutting knife is projected on a table surface on which a honeycomb structural member is mounted and processed, and a template having a size corresponding to the external dimensions of a processed product is mounted on the table. The honeycomb structural member is fixed on the upper surface of the template while being fixed, and the honeycomb structural member is cut with an ultrasonic cutting knife while moving the template by bringing the template into contact with the guide member protruding from the table surface. Is what you do.

The present invention also provides a table for fixing and processing a honeycomb structural member on a template corresponding to the external dimensions of a processed product, wherein the table has an opening through which the cutting edge of an ultrasonic cutting knife projects, and the ultrasonic The cutting knife is mounted such that the angle between the table surface and the blade and the length of the blade protruding from the opening can be adjusted, and a guide member for guiding the template on the upper surface of the table is protruded near the opening. It is a feature.

[Action]

According to the present invention, since the ultrasonic cutting knife cuts the honeycomb structural member, noise and dust are less generated, and the cut surface can be cut smoothly and with good surface accuracy. Further, the honeycomb structural member is cut to the external dimensions of the processed product with good workability simply by moving the template against the guide member.

〔Example〕

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 indicates a honeycomb structural member cutting device. The cutting device 1 includes a processing table 2 and an ultrasonic cutting knife 3 attached to the processing table 2.
And a template 4 to which a honeycomb structural member to be subjected to cutting is fixed.

The processing table 2 is supported by four legs 5a to 5d, and rollers 6a to 6d are attached to the lower ends of the legs 5a to 5d, so that the cutting device 1 can be easily handled when moving. Has become. Further, an ultrasonic generator 8 is installed on the installation plate 7 erected between the legs 5a to 5d,
The ultrasonic cutting knife 3 is connected to the ultrasonic generator 7.

A bracket 9 parallel to the vertical plane is mounted between the lower surface of the processing table 2 and the installation plate 7. The ultrasonic cutting knife 3 is mounted on a knife holder 10 rotatably mounted on the bracket 9. In this case, the angle between the blade 3a of the ultrasonic cutting knife 3 and the table surface of the processing table 2 can be adjusted. That is, the gear provided on the shaft of the handle 12 meshes with the internal gear 11 to which the bracket 9 is attached. It is designed to rotate around the center. Thereby, the angle formed by the blade 3a of the ultrasonic cutting knife 3 with the table surface can be adjusted. Also,
At a predetermined position of the processing table 2, an opening 13 is formed,
The blade 3a of the ultrasonic cutting knife 3 projects from the opening 13. In this case, the knife holder 10 is provided with a projection length adjusting means 15 having a handle 14 for adjusting the projection length of the blade 3a of the ultrasonic cutting knife 3.
The projection length adjusting means 15 can move the ultrasonic cutting knife 3 through the opening 13 and move it back and forth using a pinion rack mechanism.

Next, on the table surface near the opening 13 of the processing table 2, guide pins 16 are protruded. This guide pin
16 and 16 are for guiding the movement of the template 4 placed on the processing table 2 and having an outer periphery in contact therewith.

The honeycomb structural member cutting apparatus according to the present embodiment is configured as described above. Next, the operation thereof will be described in relation to the honeycomb structural member cutting method of the present invention.

First, the external dimensions of the template 4 correspond in advance to the external dimensions of the processed product of the honeycomb core W to be subjected to the cutting process, with the amount of the undercut C taken into account (see FIG. 3). At the time of cutting, the honeycomb core W is fixed and held on the upper surface of the template 4 via, for example, a double-sided tape 17.

Therefore, the angle formed by the blade 3a of the ultrasonic cutting knife 3 with the table surface and the protruding length of the blade 3a are appropriately adjusted in accordance with the processing dimensions of the honeycomb core W, and after the ultrasonic generator 8 is started, While pressing the cutting edge 3a of the ultrasonic cutting knife 3 against the honeycomb core W, the honeycomb core W is cut.

As shown in FIG. 2, the outer peripheral edge of the template 4 is brought into contact with the guide pins 16, 16, and cutting is continued while slowly moving the template 4 in the direction of the arrow under the guidance of the guide pins 16, 16. Since the outer dimensions of the template 4 and the outer dimensions of the processed product correspond to each other, the honeycomb core W is cut to a predetermined size as a result. In this embodiment, the honeycomb core W is cut along the two-dot chain line in FIG. 2 and along the one-dot chain line in FIG.

The cutting by the ultrasonic cutting knife 3 generates little noise and dust, and does not use cooling water or cutting oil, so that the working environment is not deteriorated and the processed product is not contaminated.

Also, apply the template 4 to the guide pins 16 and 16,
Since the honeycomb core W is cut to a predetermined accurate external dimension by simply moving the template 4 lightly, workability and productivity are improved. In addition, in the conventional cutting method, the cut surface tends to be rough, and in some cases, as shown in FIG. 4, the cut end is torn and the cut surface is not uniform. In cutting by 3, the fifth
As shown in the figure, a smooth cut surface is obtained, and the processing accuracy is improved.

〔The invention's effect〕

As is clear from the above description, according to the present invention, when cutting the honeycomb structural member using the ultrasonic cutting knife, an opening is provided on the table on which the honeycomb structural member is mounted and processed, and the opening is formed. The blade of the ultrasonic cutting knife protrudes from the table surface from above, the honeycomb structural member is fixed on the upper surface of the template corresponding to the external dimensions of the workpiece, and the template is brought into contact with the guide member protruding from the table surface and guided The structure of the cutting device is simplified because the honeycomb structural member is cut while
This improves the workability and contributes to the improvement of processing accuracy and processing efficiency.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a cutting device for a honeycomb structural member according to the present invention, and FIG. 2 is a partially omitted plan view showing a cutting method of the present invention carried out using the cutting device of FIG. ,
FIG. 3 is a partially omitted sectional view showing a cutting method of the present invention implemented by using the cutting apparatus of FIG. 1, FIG. 4 is a perspective view showing a cut surface of a conventional honeycomb structural member by a cutting method, and FIG. 5
The figure is a perspective view showing a cut surface of the honeycomb structural member according to the cutting method of the present invention. DESCRIPTION OF SYMBOLS 1 ... Cutting apparatus, 2 ... Processing table, 3 ... Ultrasonic cutting knife, 4 ... Template, 8 ... Ultrasonic generator, 10 ... Knife holder, 13 ... Opening.

Claims (2)

(57) [Claims] An ultrasonic cutting knife protrudes from a table surface on which a honeycomb structural member is mounted and processed, and a template having a size corresponding to the external dimensions of a processed product is mounted on the table and the template is mounted on the upper surface of the template. A method of cutting a honeycomb structural member, comprising fixing a honeycomb structural member, bringing a template into contact with a guide member projecting from a table surface, and cutting the honeycomb structural member with an ultrasonic cutting knife while moving the template. . 2. A table on which a honeycomb structural member is fixed and processed on a template corresponding to the external dimensions of a processed product is provided with an opening through which the blade of an ultrasonic cutting knife projects, and the ultrasonic cutting is provided on the lower surface of the table. A knife is mounted so that the angle between the table surface and the blade and the length of the blade edge protruding from the opening can be adjusted, and a guide member for guiding the template on the upper surface of the table is provided protruding near the opening. Cutting device for a honeycomb structural member.